【正文】 eginning to hear and learn more and more about The problem of pollution，we mean that＿＿＿． A．this problem is being the center of public concern B．people are using products largely made of new and often artificial substances C．the media is paying more and more attention to this problem D．people are being better educated about the problem of pollution 22．The major environmental problem caused by industrial process is＿＿＿． A．the increased production of new goods B．the creation o0f new products C．the sensible disposal of the increasing industrial wastes D．the creation of new wastes 23．The major environmental problem with agriculture is caused by＿＿＿． A．the increased population farmers have to feed B．the wornout farmland C．the restoration of the balance of the farm land D．the new methods of farming involving the use of chemical fertilizer 24．In the 1ast paragraph，it is implied that＿＿＿． A．the packaging problem only makes the pollution worse B．people should consume less to prevent me problem of pollution C．advertising plays a positive role in controlling the problem of pollution D．the problem of pollution can only be solved if we buy less 25．The passage mainly deals with＿＿＿． A．the causes of pollution and possible solutions B．pollution in a broad sense C．the ecological balance D．the industrial and agricultural pollution Passage Two Questions 26 to 31 are based on the following passage． Hippies were members of a youth movement of the 1960’s and 1970＇s that started in the United States and spread to Canada，Great Britain，and many other countries．The hippies rejected the customs，traditions，and life styles of society and tried to develop those of their own．Most hippies came from white middleclass families and ranged in age from 15 to 25 years old．They thought too many adults cared about making money and little else．The term ”hippie” may have e from the word ”hip”，which means ”tunedin” or ”aware”． Hippies wanted a world based on love of humanity and peace．Many believed that wonderful，magical change were about to take place．They thought these changes would happen as soon as people learned to express their feelings honestly and to behave naturally at all times．Hippies strongly opposed U．S．involvement in the Vietnam War． Many hippies lived together in small groups，working with one another and sharing possessions．Others refused to be tied down to a fixed job or home．They wandered from place to place seeking parttime work and temporary shelter．Some begged for spare change and lived in the streets or camped in parks or other public lands． Hippies were sometimes called “flower children” because they gave people flowers to municate gentleness and love．They wore long hair and walked barefoot or in sandals(拖鞋)．Hippies attracted public attention by wearing clothing that featured unusual binations of colors and textures．A large umber of hippies used marijuana，LSD，and 0ther drugs．Drug experiences shaped their ideas． The Beatles，a popular English rock group，helped spread the hippie movement with their songs．Hippie favorites included other rock groups as the Grateful Dead and the Jefferson Airp1ane，singers Joan Baez and Bob Dylan，poet Allen